Bobbin holder and guide for loom battery



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urn paw 3% United States Patent 3,173,454 BOBBIN HOLDER AND GUIDE FOR LOOM BATTERY William B. Cathay, RED. 2, Anderson, S.C. Filed Sept. 22, 1961, Ser. No. 140,019 2 Claims. (Cl. 139-251) This invention comprises a novel and useful bobbin holder for loom battery and more especially pertains to an improvement upon the construction disclosed and claimed in my prior Patent No. 2,513,001 of June 27, 1950.

The primary object of this invention is to provide a simplified construction of bobbin holder which shall be mounted in an improved manner upon the bobbin guide of a loom battery to effect an improved and superior resilient holding action upon a bobbin preparatory to displacement of the bobbin from the magazine into the shuttle box of the loom.

A further important object of the invention is to provide a bobbin holder in accordance with the preceding object which shall upon actuation of the transfer hammer effect a complete disengagement of the bobbin holder from the bobbin whereby the latter may without hindrance be ejected from the battery.

Still another object of the invention is to provide a bobbin holder in accordance with the preceding objects wherein the bobbin holding element contacting the bobbin during the holding of the same shall be of nonmetallic construction and shall cause a minimum wear upon the bobbin rings.

A still further object of the invention is to provide a bobbin holder in accordance with the preceding objects which shall be mounted in a simple manner and in a greatly improved arrangement upon the conventional bobbin guide of a loom battery in a manner which will contribute to trouble free operation of the device.

Still another purpose of the invention is to provide a bobbin holder in accordance with the foregoing objects which shall not require adjustment during the life of the same, shall be very inexpensive in construction and will be thoroughly dependable in use.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

FIGURE 1 is an elevational view showing the battery stand of a loom with the bobbin battery therein, a portion of the bobbin feeding mechanism, and the bobbin holder of this invention as applied thereto;

FIGURE 2 is an elevational view of the bobbin guide showing the bobbin holder applied thereto;

FIGURE 3 is a top plan view of the arrangement of FIGURE 2;

FIGURE 4 is a detail view in vertical section upon an enlarged scale and showing the manner in which the conventional bobbin guide as mounted upon the battery stand carries and supports in operative position the bobbin holder of this invention; and

FIGURE 5 is a perspective view of the combined and assembled battery guide and bobbin holder comprising the subject matter of this invention.

Shown in FIGURES 1 and 4 of the accompanying drawings is a portion of the battery stand construction of a conventional loom to which the principles of this invention have been applied, the construction illustrated being that also shown in my above-identified prior patent. Briefly, the conventional loom battery construction which is relevant to the principles of this invention includes the battery stand in which is disposed the conventional rotatable battery disk 12 containing the bobbin receiving pockets 14 in which the supply of bobbins, one of which is shown at 16, is received in the battery disk for successive discharge and ejection from the battery discharge opening 18 of the battery stand. It will be understood that from the opening 18, the bobbins are discharged into the shuttle box of the loom, not shown. The battery construction further includes conventional means, partially shown in the drawings which in properly timed relation will successively feed a bobbin from the magazine through the discharge opening 18 and into the shuttle box to replenish a spent bobbin of a shuttle as required by the operation of the loom. There is provided therefor the usual transfer head 20 with the transfer hammer 22 secured thereto and cooperating with the discharge opening 18 for ejecting the bobbin 16 therethrough. A bobbin guide in the form of a bracket 24 is customarily detachably secured as by the fastening bolts 26 to a support bracket 28 upon the battery framework of the loom and carries a spring means for yieldingly holding a bobbin in the opening 18 in readiness for ejection by op-' eration of the hammer 22.

In the present invention, the conventional bracket 24 and the resilient holder carried thereon are replaced by an improved construction of bracket and holder forming the invention claimed hereinafter and to be now described.

As will be most readily apparent from FIGURES 4 and 5, the bracket 24 comprises an L-shaped member having a flat plate 30 comprising its base which is apertured as at 32 to receive the fasteners 26 which secure it to the underside of the support bracket 28. Rising from the base 30 is an upwardly extending integral leg 34 having an arcuate or convex lower portion 36 provided with an aperture 38 therethrough. The upper portion of this leg has a fiat slightly recessed surface 40 and is provided with threaded bores 42. A leaf spring bobbin holder indicated generally by the numeral 50 is mounted upon the upstanding leg 34 of the bracket 24. This leaf spring includes a circular bow 52 at its mid-portion from which extend a pair of legs 54 and 56 in side-byside relation but of different lengths. The short leg 54 is apertured as at 58 to receive fasteners 60 by which this leg is secured upon the flat surface 40 of the upper end of the bracket leg 34 in a secure but removable manner.

The longer leg 56 extends down below the upper portion of the leg 34 and into the concave back side 62 thereof. The lower end of this holder spring leg 56 abuts against the diametrically enlarged annular head 64 of a cylindrical plunger or pin 66 which is slidably received and guided in the bore 38. Preferably this plunger is of a non-metallic material, preferably nylon, in order to reduce the frictional wear of its engagement with the bobbin 16 and the guide rings 68 thereon.

In some instances, the head 64 of the pin may be fixedly secured to the holder spring leg 56, while in other instances the connection may be merely the resilient engagement of the leg against the head 64. In either event, the inherent tension of the holder spring 50 will yieldingly urge the plunger 66 inwardly of the bore 38 until further movement is stopped by engagement of the headed portion 64 against the concave surface 62 of the holder bracket.

From the foregoing, it is believed that the operation of the invention will now be clearly understood. With the device installed as shown in FIGURE 4, and with the parts positioned as in FIGURE 1, it will be noted that the battery disk 12 is turned so that one of its bobbins 16 is disposed in the discharge opening 18 and is resiliently engaged by the inwardly projecting end of the plunger 66. The spring acting on the plunger thus exerts a resilient force which not only serves to securely hold the bobbin in the opening in readiness for its being ejected from the magazine and through the opening, but also applies a resilient force to the battery disk and its associated mechanism to take up slack or wear in the driving train thereof.

When in the course of operation of the loom the replenishing mechanism requires the feeding of the bobbin 16 from the battery into the shuttle box of the loom, the transfer head 20 is operated and the hammer 22 strikes a sharp blow upon the bobbin 16. This blow will dislodge the bobbin from its frictional engagement and as soon as the bobbin moves from beneath the holder pin or plunger 66, the resilient pressure on the bobbin is released and the latter is free to travel through the opening and into the shuttle box. Thus, the spring pressure is applied to the bobbin only during its being held in position and as soon as the ejecting mechanism delivers its ejecting blow, and the bobbin starts to move, all spring pressure upon the bobbin is released. Thereupon the mechanism of the battery turns the battery disk and presents the next bobbin at the opening where the same is again resiliently held by the plunger until the next operation of the bobbin ejecting mechanism.

It will be observed that the present device completely removes all parts of the bobbin holder from the battery opening with the single exception of the plunger 66 which projects thereinto. The spring is mounted above the device in a manner to be unobtrusive and present no obstructions, and to be free of any accumulation of lint and the like which would tend to interfere with the operation of the bobbin ejecting mechanism.

Further, in the event that the spring should break, it can be easily and quickly replaced and the broken spring parts will again be in no danger of entering the discharge opening and thus interfering with the operating of the battery mechanism.

It will be noted that the bracket leg 34 has its exterior surface vertically grooved as at 70. These grooves will engage and guide the bobbin during its discharge through the opening 18 thereby preventing twisting or shifting of the bobbin during its discharge.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. A bobbin holder for loom batteries of the type including a battery stand with a battery disk rotatably journaled therein and a downwardly directed discharge opening for ejection through said discharge opening of bobbins held by said disk, said holder comprising a bracket having a leg disposed at one side of and extending vertically from below to above said discharge opening with an opening extending laterally therethrough and communicating with said discharge opening, a plunger slidably received and guided in said holder opening and projectable therefrom into said discharge opening for engagement with and resilient retention of a bobbin held in said disk to retain said bobbin in position for ejection through said discharge opening, said plunger including a stem portion slidably received in and projecting through said holder opening into said discharge opening and an enlarged head adapted to abut said holder bracket upon the opposite side thereof from said discharge opening and limit projection of said plunger into said discharge opening, resilient means detachably mounted on said holder bracket disposed remotely from and above said discharge opening and resiliently urging said plunger through said holder opening and into said discharge opening, said resilient means comprising a one-piece leaf spring including a pair of generally parallel legs, one leg being relatively shorter and being secured to said holder bracket on the upper portion thereof above said discharge opening and the other leg being relatively longer and disposed on said opposite side of said holder bracket and extending downwardly below said holder opening and overlying said plunger head and yieldingly urging said plunger and a resilient arcuate spring portion outwardly bowed from said legs and connecting the upper ends of said legs above said bracket leg and resiliently biasing the legs towards each other.

2. The combination of claim 1 wherein said holder bracket leg has a fiat planar surface provided with a fiat recessed surface on the upper portion of its side which is adjacent said discharge opening and is above said holder opening, said shorter leg of said resilient means being seated upon said recessed surface and secured to said bracket.

References Cited by the Examiner UNITED STATES PATENTS 799,130 9/05 Wood 139-207 834,945 11/06 Stimpson 139-251 873,467 12/07 Stone 139-251 1,452,655 4/23 Rhoades 139-251 1,941,950 1/34 Meehan 139-251 1,963,916 6/34 Lindsjo 139-251 2,008,204 7/35 Dodge 139-251 2,219,038 10/40 Thatcher 139-251 DONALD W. PARKER, Primary Examiner.

MADER, Examiner. 

1. A BOBBIN HOLDER FOR LOOM BATTEREIS OF TYPE INCLUDING A BATTERY STAND WITH A BATTERY DISK ROTATABLY JOURNALED THEREIN AND A DOWNWARDLY DIRECTED DISCHARGE OPENING FOR EJECTION THROUGH SAID DISCHARGE OPENING OF BOBBINS HELD BY SAID DISK, SAID HOLDER COMPRISING A BRACKET HAVING A LEG DISPOSED AT ONE SIDE OF AND EXTENDING VERTICALLY FROM BELOW TO ABOVE SAID DISCHARGE OPENING WITH AN OPENING EXTENDING LATERALLY THERETHROUGH AND COMMUNICATING WITH SAID DISCHARGE OPENING, A PLUNGER SLIDABLY RECEIVED AND GUIDED IN SAID HOLDER OPENING AND PROJECTABLE THEREFROM INTO SAID DISCHARGE OPENING FOR ENGAGEMENT WITH AND RESILIENT RETENTION OF A BOBBIN HELD IN SAID DISK TO RETAIN SAID BOBBIN IN POSITION FOR EJECTION THROUGH SAID DISCHARGE OPENING, SAID PLUNGER INCLUDING A STEM PORTION SLIDABLY RECEIVED IN AND PROJECTING THROUGH SAID HOLDER OPENING TO SAID DISCHARGE OPENING AND AN ENLARGED HEAD ADAPTED TO ABUT SAID HOLDER BRACKET UPON THE OPPOSITE SIDE THEREOF FROM SAID DISCHARGE OPENING AND LIMIT PROJECTION OF SAID PLUNGER INTO SAID DISCHARGE OPENING, RESILIENT MEANS DETACHABLY MOUNTED ON SAID HOLDER BRACKET DISPOSED REMOTELY FROM AND ABOVE SAID DISCHARGE OPENING AND RESILIENTLY URGING SAID PLUNGER THROUGH SAID HOLDER OPENING AND INTO SAID DISCHARGE OPENING SAID RESILIENT MEANS COMPRISING A ONE-PIECE LEAF SPRING INCLUDING A PAIR OF GENERALLY PARALLEL LEGS, ONE LEG BEING RELATIVELY SHORTER AND BEING SECURED TO SAID HOLDER BRACKET ON THE UPPER PORTION THEREOF ABOVE SAID DISCHARGE OPENING AND THE OTHER LEG BEING RELATIVELY LONGER AND DISPOSED ON SAID OPPOSITE SIDE OF SAID HOLDER BRACKET AND EXTENDING DOWNWARDLY BELOW SAID HOLDER OPENING AND OVERLYING SAID PLUNGER HEAD AND YIELDINGLY URGING SAID PLUNGER AND A RESILIENT ARCUATE SPRING PORTION OUTWARDLY BOWED FROM SAID LEGS AND CONNECTING THE UPPER ENDS OF SAID LEGS ABOVE SAID BRACKET LEG AND RESILIENTLY BIASING THE LEGS TOWARDS EACH OTHER. 